Ramdan, R. D., Prawara, B., Suratman, R., Marta, F., & Rinaldi, A. (2017). The Effect of Substrate Pre-treatment on Hydroxy-apatite Coated Titanium Alloy by High-velocity Oxy-fuel Process. MECHANICAL ; Jurnal Ilmiah Teknik Mesin, 8(1), 1–5. https://doi.org/10.23960/mech.v8i1.580